26118295664 has 20 divisors (see below), whose sum is σ = 50665860600. Its totient is φ = 13043234880.

The previous prime is 26118295591. The next prime is 26118295669. The reversal of 26118295664 is 46659281162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26118295669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981014 + ... + 1007285.

It is an arithmetic number, because the mean of its divisors is an integer number (2533293030).

Almost surely, 2^26118295664 is an apocalyptic number.

It is an amenable number.

26118295664 is a deficient number, since it is larger than the sum of its proper divisors (24547564936).

26118295664 is a wasteful number, since it uses less digits than its factorization.

26118295664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989128 (or 1989122 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 26118295664 in words is "twenty-six billion, one hundred eighteen million, two hundred ninety-five thousand, six hundred sixty-four".